Home / 11,101.20-16,651.80-3,203.70

Finding the Fourth Proportional to 11,101.20, 16,651.80 and 3,203.70

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Solution

The fourth proportional to 11,101.20, 16,651.80 and 3,203.70 is: 4,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.20 : 16,651.80 = 3,203.70 : x
  2. Step 2: Convert to fraction form
    11,101.20/16,651.80 = 3,203.70/x
  3. Step 3: Cross multiply
    11,101.20x = 16,651.80 × 3,203.70
  4. Step 4: Simplify right side
    11,101.20x = 53,347,371.66
  5. Step 5: Solve for x
    x = 53,347,371.66/11,101.20
  6. Step 6: Final answer
    x = 4,805.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.